Swivel joint hose coupling



Feb. 28, 1939. F. LEON 2,148,566

SWIVEL JOINT H OSE COUPLING Filed June 23, 193'? v l 5 cl.. 5- IINVENTOR.. FRAM/5 Lao/v.

ATTORNEYS.

Patented Feb. 28, 1939 orme 2,'1482566A SWIVEL JoIT fno sE-coUPLfINGFrances Leon, akland,- Califf Apiilieati rmi/ zal? 1937, serial1mi-149376? s f Claims. (Cl. 2859j" principal object Ithe 'provision "ofa ^couplir'ig hav' ring lafswiveled portion; jwhich allows 'for free 5`'turning Vmoven'lents ofthe coupling sections.

This prevents" the formationfof. loops "or lkinks 'inv thefhose duringthe use thereof," andes'pecially when' coupling thehose'ftoa hydrant orsecuring two ho'sesections together.

A f urther object iste"provide a "swivel 'hose coupling that 'isconstructed'in'A such a'manner' that component parts may be readily'asseinl'aled` i intoa compact ,the parts beingintertt'ed to seal the:oupling'againstV leakage at Itheswivel "portion thereof'.v

It' wi1l' 'be 'noted as" the 1 specication'proceeds thatlmy'couplingisad'apted forjuse'inconnectori with the present'day1reght'ingequipment. I In this frespectjit will' be 'noticed thatjbut: "one move iable member isk requiredv toprovide a free swivel`movement for' the 're'l hoselsections at each con#neocon"wherethe'hose'is .securely In a like'fmanner; my swiveljoint:couplingwill' performan equally important'service in the minf liingindustry, wherein long rlengths of hose' are# employed i under high.pressures; v'which would instantly destroya section of vhose should it'bei' come temporarily obstructed loyfreas'ori'ofa` s',l1 ort bend orkink. The ilexible'swivel"movement'of samy' coupling entirel of kinksinthe hose.

It is Often. ,necessary @employ averi-heavrf hosef of anonlcollap'sible"nature, such 'as' inc the j winery 'andi in thefoodindustriesij k Undersuchj^ conditionsjfthe laborj of fcouplingfis oftenvery:` diiicult due tothe stillness of thejhose, and its" resistance tocompensate-with anydegree of pli-Y abilitywhen being connected oftencauses looseningat `-thcel connecting; joints Ywhenv the hose is40iplac'e`dlunder pressure. y l

ployed to r*overcome* these disadvantages.

The above important 'applications lhave' 'been mentioned to illustratethe"y manyimportant-'in dustrieswhere flexible hose is a most essentialpart Aof the production equipment, and wherein my coupling may beutilized in overcoming the difficulties encountered in the handling andgeneral usages of hose. My coupling may be employed in the oil industgarden hoses and the like, and I do not wish to be limited in thisrespect.

Other objects and advantages of my invention will appear as thespecification proceeds, and the novel features thereof will beparticularly set forth in the claims hereto appended.

They present invention relates to improvements' y eliminates theformation through 'm'diedfornis of 'mycouplingf While I have'shownf'only the preferred forms 15 of my invention', I wish 'to' have''itunderstood 1 that various'fchanges or modifications may 'be made'within' the s :o"1 :e "of 1y the" "appended claims without departingfrom the spirit of the inven- 20 In carryingmy inventionint'o` practiceI prothe Jhoseerids-Z in alinedlrelationythe'coupling beingiconstructed'fsd as ltov permit one hose "to freely turnWithjfrespe'ct'"tojtheother."

The coupling consists of a male section 3 that 5 Y is threadedinto'afemaleseotiori 4,' asatA 5, a

suitable"'fvvas'h'erV 6 v'being*introduced 'between the couplingsections:

Thei'fema'lesection-I consists of a body vmember 30 i; (1 which isrotatably secured within a sleeve 8 as shown in Figure 1. The bodymember 1 has'a reducedt end9-thatis formedfwith annular stillv threadsFl Ufand -thisreduced en'dis slotted as Yat Il from'the'endilZ thereof."An annular'ring I3 356i engages with@ the -still threads i I 0 when thelcou'- pling is assembled, and coacts with anL internal'shoulder-Id'fashioned inthe lsleeve 8 to hold the latterupon'the bodymember I with freedom of rotary movement;

It will 'noted that-the male section 3 and the 40 Y sleeve 8 are' formedwith annular internalcorru#A gatiohs'"| 5` on' lth'e-'inr'ieiboresthereof? v'I'he hos-=f. ends "12 are'secured within'v the malesectionitand* latter serving to hold the hose ends in engagement with thecorrugations I5 in the conventional manner.

The body member l is illustrated in its normal position in Figure 2.Prior to assembling the coupling, the reduced end 9 is forced inwardlyor crimped by external pressure, applied in any suitable manner, andproducing a taper indicated by the dotted lines I1. The slots llfacilitate this inward-bending of the end 9. The reduced end 9 55 inYthe form shown in Figure 6.

are formed with bulgedV der I8 of the body member 1 bears against theinternal shoulder I4 on the sleeve.

With the body member 1 thus telescoped within the sleeve 8, the ring I3is then introduced over the tapered and reduced end 9 until the ringcontacts the internal shoulder I4. A suitable tool, (not shown) is usedfor expanding the reduced end 9 until the still threads I0 thereon entersimilar still threads I9 formed in the bore of the ring. The slots IIare reopened by the outward expanding of the end 9 and the body member 1takes the shape illustrated in Figure 2 of thev drawing.

The parts 1 and 8 are now anchored together, but they are free to rotatewith respect to each other and will allow relative turning movementbetween the alined hose ends 2. The slots II are l then closed by anysuitable means, and by way of illustration I have shown a tubular liner20, f

which snugly engages with the bore 2I of the member 1..

The ends of the liner 20 are turned outwardly to provide flanges 22 and23 which serve to anchor the liner in place. The ange 22 also preventsleakage of fluid along the threads I and I9. It will be understood thatthe slots Il could be closed by welding.

In Figure I show the tubular parts 24 and 25 as being arranged in alinedrelation, and hose ends 2liv and 21 are secured thereto respectively byannular buttress threads 28. A tubular liner 29 .extends through thebores of the parts 2liA and 25, and the ends of the liner are flangedoutwardly as at 30 to secure the two parts together, while allowing freeturning movement therebetween.

A projection 3l on the part 24 may be provided, if desired, and isaccommodated in a recess 32 in the part 25 as shown in the drawing. Thisform of my coupling is particularly well adapted for small hoses, suchas are used in gardens.

Substantially the same construction is followed 'I'he tubular parts 33and34, however, sections 35 to engage with the bores 36 of the flexibletube ends 31. The parts 33 and v34 are held together by means of a liner38 having flanged ends 39 bearing against opposite ends of the alignedparts 33 and 34, the latter being adapted for free turning movement withrespect to each other.

I claim:

1. A swivel-joint hose coupling comprising a pair of tubular sectionstelescoped one within the Aother with freedom of turning movementtherebetween, means limiting the inward telescoping movement of theouter section upon the inner section to a desired end position, meansfor securing conduits to said sections, the outer section having anannular internal shoulder fashioned in the bore thereof, and a ringsecured to the inner section and coacting with said shoulder for holdingthe sections together, the ring being dimensioned for sliding along thebore of the outer section from the outer end of the latter and is theninserted into the sleeve 8 until the shoullinto engagement with theinner section after the sections have been assembled together.

2. A swivel-joint hose coupling comprising a pair of tubular sectionstelescoped one within the other with freedom of rotary movementtherebetween, means limiting the inward telescoping movement of theouter section'upon the inner section to a desired end position, meansfor securing conduits to said sections the outer section having anannular internal shoulder fashioned in the bore thereof and the innersection having slots in one end thereof to facilitate inward crimping ofsaid end, a ring mounted on said end and coacting with said shoulder forholding the sections together, the outer section being constructed topermit introduction of the ring over-the inner section after thesections have been assembled, and means securing the ring to said endwhen the latter is expanded.

3. A swivel-joint hose coupling comprising a pair of tubular sectionstelescoped one within the other with freedom of lrotary movementtherebetween, the outer section having an annular internal shoulderfashioned in the bore thereof and the inner section having slots in oneend thereof to' facilitate inward crimping of said end, a ring mountedon said end and coacting with said shoulder for holding the sectionstogether, and means securing the ring to said end when the latter isexpanded and means for forming a closure over the slots to preventleakage of fluid therethrough.

4. A swivel-joint hose coupling comprising a pair of tubular sectionstelescoped one within the other with freedomV of turning movementtherebetween, means limiting the inward telescoping movement of theouter section upon the inner section to a .desired end position, andmeans applied to the inner section for locking the sections in said endposition and including a locking member dimensioned for sliding alongthe bore of the outer section from the outer end of the latter and intoengagement with the inner section after the sections have been assembledtogether.

5. A swivel-joint hose coupling comprising a pair of tubular sectionstelescoped one within the other, the outersection having an annularinternal ring in its bore spaced from the end thereof through which theinner section is introduced so asto leave a bearing surface, the innersection having a reduced neck defining a shoulder abutting one face ofthe internal ring to limit the inward insertion of the inner section,the larger portion of the inner section having a snug fit with saidbearing surface of the outer section, the reduced neck of the innersection projecting through and beyond said internal ring, and a clampingring .secured to the projecting end of the reduced neck and bearingagainst the face of said internal ring opposite the shoulder of theinnerk section and holding the two sections together influid-tightrelation.

FRANCES LEON.

